It is hardly ever pleasurable to acknowledge an injector noise on your Bmw Serie 2. It is a noise that comes up frequently, usually when you accelerate or your engine is idling. However, this symptom may be relating to multiple kind of problems with your vehicle injectors. It may not be anything serious, but when a continuing noise comes out, you have to be sure. Most importantly since replacing your Bmw Serie 2’s injectors can be costly. That’s why our team decided to prepare this article content in order to support you see more clearly, learn about the different plausible failures and determine your issue. To do this, we will first look at the normal functioning and usefulness of the injectors in your Bmw Serie 2, then at the plausible triggers from which an injector noise may come.injector-noise-bmw-serie-2

Functions of the injectors

Injectors are a very important element of the operation of your engine motor. They were launched to the modern cars about 20 years ago. Before their appearance, more conventional carburettor-type intake systems were used, which handled the intake of air and fuel into the engine cylinders. With the injectors, manufacturers now have the possibility, thanks to the injectors pump, to control electronically each stage of the intake process very precisely (quantity of fuel injected, air/fuel mixture) via the analysis of the data received from the various sensors equipping the vehicle (engine temperature, acceleration level, engine speed, etc.). Their objective is therefore to inject under high pressure a precise quantity of an air/fuel mixture at a perfect timing to get the best possible combustion in the cylinders.

The different triggers of a clicking or knocking noise caused by the injectors of your Bmw Serie 2

Hearing injector noises on your Bmw Serie 2 may originate from different locations, we will now center on the potential causes of these. In most cases, the typical noise of a faulty injector is of the snap type. Here are the different origins of these noises and the solutions to be used to stop them. If you acknowledge another clicking noise but it is not from your injectors, we encourage you to read this article content about clicking noise on Bmw Serie 2 to locate the cause.

The reasons for injector clicking or knocking noise Bmw Serie 2

A clicking or knocking noise from your injectors can be justified by different reasons. Indeed, the injectors of your Bmw Serie 2 have three main tasks, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its task is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the target of improving combustion. If one of these three functions is modified, the main purpose of the injectors will be disturbed and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders because of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will induce thoses knocking or clicking noises on your Bmw Serie 2. The main cause of these concerns usually originates from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible blockage will inevitably lead to a malfunction of the injector. If after verifying, this noise originates from another component of the engine of your Bmw Serie 2, check this article content for more informations.

The effects of injector noise on Bmw Serie 2

Now that we have reviewed the several reasons for injector noise on your Bmw Serie 2, we will end by stating the possible end result of malfunctioning one or more of your injectors. Whether only one is blocked, or broken, or your entire fuel rail is involved, you cannot escape these side effects which can fairly quickly become serious….
First, you risk destroying your exhaust system in the long run, because the unburned fuel residues that will end up in your exhaust system can corrode the metal in it.
One of the most regular consequences noticed by drivers is a noticeable loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will obviously have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will fairly quickly affect your cylinders or pistons and your engine may tighten.
Here are three little suggestions to limit the risks relating to your injectors and protect you from engine failure:

  • Do not drive at the bottom of the tank, as you may absorb impurities
  • Use quality fuel
  • Think of swapping your diesel fuel filter regularly>